Начало работы над кастомным деревом вывода

Pf2eViewer/EntityTreeViewerControl.cs

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+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Reflection;
+using System.Security.Cryptography.X509Certificates;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using System.Windows.Forms.VisualStyles;
+using Microsoft.EntityFrameworkCore.Metadata.Internal;
+
+namespace Pf2eViewer;
+
+public partial class EntityTreeViewerControl : UserControl
+{
+    private int _itemHeight = 20;
+
+    private EntityView? _entityView = null;
+
+    public int ItemHeight
+    {
+        get => _itemHeight;
+        set
+        {
+            _itemHeight = value;
+            UpdateView();
+        }
+    }
+
+    public EntityView? EntityView
+    {
+        get => _entityView;
+        set
+        {
+            _entityView = value;
+            UpdateView();
+        }
+    }
+
+    public EntityTreeViewerControl()
+    {
+        InitializeComponent();
+    }
+
+    public void UpdateView()
+    {
+        ContentPanel.Controls.Clear();
+
+        if (EntityView?.Entity is null)
+        {
+            return;
+        }
+
+        Rows.Clear();
+
+        Rows.Add(new HeaderRow("Entity"));
+        Rows.Add(new ObjectComplex(null, EntityView.Entity));
+        Rows.Add(new HeaderRow(EntityView.SubEntity?.GetType().ToString() ?? "SubEntity"));
+        Rows.Add(new ObjectComplex(null, EntityView.SubEntity));
+
+        List<DisplayRow> displayRows = Rows.SelectMany(r => r.GetTextRows()).ToList();
+
+        for (int i = 0; i < displayRows.Count; i++)
+        {
+            DisplayRow dr = displayRows[i];
+
+            TextBox tb = new()
+            {
+                Top = i * ItemHeight,
+                Left = 0,
+                Width = ContentPanel.Width,
+                Height = ItemHeight,
+                Font = Font,
+                Text = string.Join(
+                    "",
+                    [new(' ', dr.Depth * 2), dr.Name, dr.Value != "" ? " : " : "", dr.Value]
+                ),
+                Margin = new(0),
+            };
+
+            ContentPanel.Controls.Add(tb);
+        }
+    }
+
+    private Panel GetObjectPanel(object obj)
+    {
+        Panel result = new();
+
+        Type type = obj.GetType();
+
+        PropertyInfo[] properties = type.GetProperties();
+        /*
+        FieldInfo[] fields = type.GetFields(
+            BindingFlags.Instance
+                | BindingFlags.Static
+                | BindingFlags.NonPublic
+                | BindingFlags.Public
+        );
+        */
+        for (int i = 0; i < properties.Length; i++)
+        {
+            PropertyInfo property = properties[i];
+
+            TextBox tb = new()
+            {
+                Top = i * ItemHeight,
+                Left = 0,
+                Width = ContentPanel.Width,
+                Height = ItemHeight,
+                Font = Font,
+                Text = property.Name,
+                Margin = new(0),
+            };
+
+            result.Controls.Add(tb);
+        }
+
+        result.Width = ContentPanel.Width;
+        result.Height = properties.Length * ItemHeight * 2;
+
+        return result;
+    }
+
+    private List<Row> Rows = [];
+
+    private class DisplayRow
+    {
+        public string Name = "";
+
+        public string Value = "";
+
+        public int Depth = 0;
+    }
+
+    private abstract class Row
+    {
+        public abstract ICollection<DisplayRow> GetTextRows();
+
+        public int Depth = 0;
+    }
+
+    private class HeaderRow(string name) : Row
+    {
+        public readonly string Name = name;
+
+        public override ICollection<DisplayRow> GetTextRows()
+        {
+            return [new() { Name = Name, Depth = Depth }];
+        }
+    }
+
+    private abstract class ObjectField(PropertyInfo property, object? parent) : Row
+    {
+        public readonly PropertyInfo? Property = property;
+
+        public readonly string Name = property.Name;
+
+        public readonly Type Type = property.PropertyType;
+
+        public abstract int Rows { get; }
+
+        public static ObjectField Resolve(PropertyInfo property, object? parent)
+        {
+            return property.PropertyType.IsPrimitive
+                ? new ObjectPrimitive(property, parent)
+                : new ObjectComplex(property, parent);
+        }
+    }
+
+    private class ObjectPrimitive : ObjectField
+    {
+        public readonly object? Value;
+
+        public override int Rows => 1;
+
+        public ObjectPrimitive(PropertyInfo? property, object? parent)
+            : base(property, parent)
+        {
+            Value = Property.GetValue(parent, null);
+        }
+
+        public override ICollection<DisplayRow> GetTextRows()
+        {
+            return
+            [
+                new()
+                {
+                    Name = Name,
+                    Value = Value?.ToString() ?? "null",
+                    Depth = Depth,
+                },
+            ];
+        }
+    }
+
+    private class ObjectComplex : ObjectField
+    {
+        public readonly List<ObjectField> Fields;
+
+        public bool Collapsed = false;
+
+        public override int Rows => 1 + Fields.Select(f => f.Rows).Sum();
+
+        public ObjectComplex(PropertyInfo? property, object? parent)
+            : base(property, parent)
+        {
+            PropertyInfo[] properties = Type.GetProperties();
+
+            object? value = Property?.GetValue(parent, null) ?? parent;
+
+            Fields = properties.Select(f => Resolve(f, value)).ToList();
+        }
+
+        public override ICollection<DisplayRow> GetTextRows()
+        {
+            List<DisplayRow> rows = [new() { Name = Name, Depth = Depth }];
+
+            if (!Collapsed)
+            {
+                rows.AddRange(Fields.SelectMany(f => f.GetTextRows()).ToList());
+            }
+
+            return rows;
+        }
+    }
+}